Tungsten carbide cutting head with tip and spurs. Twin-fluted hardened steel shank and twin-fluted body for a smooth finish. Compatible with Triton Duo Dowel Jointer TDJ600. 10mm shank. Tungsten carbide cutting head with tip and spurs. Twin-fluted hardened steel shank and twin-fluted body for a smooth finish. Compatible with Triton Duo Dowel Jointer TDJ600. 10mm shank.